Compare/Allis Chalmers FD5 vs Allis Chalmers HD7

Allis Chalmers FD5 vs Allis Chalmers HD7

Verdict: Allis Chalmers FD5 vs Allis Chalmers HD7

The Allis Chalmers FD5 and the Allis Chalmers HD7 are both tractors — here is how they stack up on the figures that matter. Allis Chalmers FD5 leads on rated power with 50 hp against 45 hp. Allis Chalmers FD5 is the lighter machine (2,454 kg vs 6,350 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers FD5 is the newer design (1963 vs 1940). In short: choose the Allis Chalmers FD5 for outright pulling power, or the Allis Chalmers HD7 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Acreage600 acBudgetMain crop / use

Fit & specs

Allis Chalmers

Fit score

Best match

Clear

Allis Chalmers

Fit score

Best match

Clear

Rated power

50 hp

45 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Allis ChalmersReference

Four speeds (1-4) in two ranges.Reference

Gear 1 used for pull test.Reference

Total built

—

1,803Reference

Drive

—

crawlerReference

Engine

37.3 kWReference

—

Displacement

4.0 LReference

3.5 LReference

Bore/Stroke

115 x 130 mmReference

108 x 127 mmReference

Power

37.3 kWReference

—

Rated RPM

1800Reference

1500Reference

Starter volts

12Reference

Oil capacity

25.0 LReference

19.9 LReference

Fuel tank

—

117.3 LReference

Drawbar (claimed)

—

33.6 kWReference

Belt (claimed)

—

44.7 kWReference

Drawbar (tested)

—

42.7 kWReference

Belt (tested)

—

51.2 kWReference

Air cleaner

—

oil bathReference

Compression

—

16.0:1Reference

Coolant capacity

—

21.8 LReference

Belt power (max)

—

51.2 kWReference

Max power

—

42.7 kWReference

Transmission

Gears

8 forward and 4 reverseReference

4 forward and 1 reverseReference

Type

—

sliding gearReference

Capacities

Fuel

70.0 LReference

—

Diameter

27 cmReference

—

Width

175 cmReference

205 cmReference

RPM

1280Reference

—

PTO & Hydraulics

Hydraulic system

18.0 LReference

—

Capacity

18.0 LReference

—

Rear Type

IIReference

—

Rear PTO Type

540 (1.375)Reference

—

Engine RPM

540@1080Reference

—

Dimensions

Wheelbase

228 cmReference

—

Weight

2454 kgReference

6350 kgReference

Front tire

5.50x20Reference

—

Rear tire

12x38Reference

—

Ag front

5.50x20Reference

—

Ag rear

12x38Reference

—

Length

329 cmReference

325 cmReference

Height

160 cmReference

175 cmReference

Ground clearance

49 cmReference

—

Operating weight

—

6350 kgReference

Gauge

—

132 cmReference

Electrical

Ground

negativeReference

—

Batteries

2Reference

—

Battery volts

6Reference

—

HD7 Serial Numbers

1940

—

3Reference

1941

—

503Reference

1942

—

1137Reference

1943

—

5403Reference

1944

—

5753Reference

1945

—

8949Reference

1946

—

12091Reference

1947

—

13078Reference

1948

—

15122Reference

1949

—

16752Reference

1950

—

18086Reference

Location:

—

Serial number stamped on the right-rear of the transmission case or on a plate near the instrument panel.Reference

Allis Chalmers HD7 Tracks

Length on ground

—

170 cmReference

Area on ground

—

1.4 m²Reference

Ground pressure

—

0.4 barReference

Test results

Belt fuel use (max)

—

18.2 l/hourReference

Max pull

—

5520 kgReference

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.